Weeder



April 19, 1927.

. J. A. TALBT WEEDER Filed July 25. 1925 Patented Apr. 19, 1927.

JAMES A. TALBOT, OF "Vi/'ALLA W'ALLA, VI'ASHNGTON, ASSIGNOR Gi? GN'EI-IALF TG S. V. DAVIN, OF 'WALLA WALLA., IAEA-11m GTGN.

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Application led July 23, 1925.

This invention relates to weeders and has as one of its objects to provide a weeder having a rotatable cutting blade and affording` a means for the positive rotation of the blade.

Another object of the invention is to pro vide a weeder having a wheel engageable with the soil for rotating the blade, and providing a means whereby the wheel will run idle when the blade is in operation and secured by a tripping means, and that will automatically rotate the blade with the release of the tripping means.

A further object of the invention is to provide a weeder having an idle cutting disc positioned in trace with the means for rotating the cutting blade that will produce a true path for the rotating means and prevent it from rising out of the ground with the rotation of the blade.

lVith these and other objects in view reference is now had to the accompanying drawings in which- F ig. 1 is a perspective View of the weeder;

F ig. 2 is a plan view of the cutting disc and the rotating means; and

Fig. 3 is a sectional View of the clutch mechanism.

Having reference to the dra-wings like numerals refer to like parts throughout the several views and the numeral 1 refers to a weeder comprising in general a frame 2, a platform 3 mounted on the frame, runners l rigidly attached to the frame, and a cutting blade 5 rotatably mounted in the weeder.

The blade is provided on its ends with axles 6 that are madea part of the blade as shown and extend to pass through the runners, the latter forming a bearing therefor, and the axles are provided with squared ends 7, as shown in Fig. 3, for a purpose to be explained.

The blade is held in the operative position, and released therefrom, by a tripping means comprising a beam 8 that extends longitudinally of the weeder to which it is attached by means of depending plates 9 that are pivotally attached to the runners by bolts 10.

By this arrangement the beam may be oscillated forward or backward, this movement being accomplished by an operating lever 11 operably mounted on the platform 3, with a horizontally disposed rod 12 consensi No. 45,519.

necting the operating lever with a raised arm 13 that is rigidly secured to the beam 8.

Attached to the plates 9 for movement therewith is a rod that extends rearward to pivotally engage vertically positioned bars 15 that are pivotally attached to the runners, the bars in turn having rollers 15 rotatably mounted on their ends` to engage the rear end of the cutting blade and prevent it from rotating by the resistance of the soil, with a spring 1.7 suitably mounted on the rod to yield. y restme the bar to a normal vertical position rwith the roller eugaging the blade as above mentioned.

The blade is rotated by a ground wheel that depends for its rotation upon its ifctional contact with the soil through which it passes, and the two are connected )y means of a clutch mechanism 19 interposed between thek ground wheel and the blade and positionedadjacent to the runner, with a connecting rod 20 connecting the clutch with the above mentioned depending plate 9. By this means the clutch will be operated automatically with the movement of Jthe beam when the latter is moved to trip the blade.

The ground wheel and clutch consist of a clutch collar 21 slidably mounted on the squared end T of the axle, and the clutch collar is provided with the usual projecting dog 22 that is engageable with a complemental dog 23 attached to, or preferably made a part of, the ground wheel. The ground wheel is rotatably mounted on a collar 24 that is secured on the end of the axle by a Cotter hey 25 or other suitable means.

rlhe collar 24 has an inner flange 26 against which the ground wheel rotates, and the ground wheel is secured on the collar by means of a washer 27 that in turn is held in place by the said cotter hey. A spring 28 is interposed between the ground wheel and the clutch collar to maintain the clutch normally free so that the ground wheel may ro tate at all times during the movement of the weeder, and the clutch collar is provided with a groove 29 that will receive a pin 30 attached to the clutch lever 31.

rlhe clutch lever is operably attached to the ruimer by means of a bracket 32 that is suitably attached to the runner and to which the lever is suitably attached by a bolt 33.

By this arrangement it will now be obvious that upon operating the tripping mechanism the connecting rod and t-he clutch lever, and eoneqnenl'ly the eluleh, will more eonjoinl'lj7 willi lille 'lrippngg nleehzinisni lo engage the ground wheel es the lripping;l mechanism is released, und lll-.rl die ground wheel will lhen lnrn llle zulle :1nd rol-.lie lhe bllnle. Non' :is the sningg oil lhe liripinnj meelnlniwln restores it lo 'ils nornml poeilion lille ground w ieel will eonlinne its reroln- *tiene wilihonli :ill'eeling the blade.

loniliioned ehe-.1d o' :ind in linee willi the ground wheel is :L pilot milling; di-=e ll ille-". il idlulY nionnled on n .spindle B5 :drin-.heal lo he runner in un); snilzable nninner. ',lfhe enl' line diie is. deeigjlxed nilli :i elmrpenl-:d eige :nid if.; :lrrznzged :so llml il will lrzlvel nheed el' he rlolnn wheel :1nd unl', :l pelli lherl lor.

.le lhe blanle is eonSlnnlly buried in lhe ,will there il: :i tendency dnrinn` rolnlion ol he blnde lo reise the weener enenggli lo bringl the blade ont olf llxe gijrlntnd, and if there irs e lmrd place eneonnl d in ille. soil, by the ,ojronnd wheel :lli lle linie o'if llilrliping, or il? slnbble or weeds` :1re enen;nilered, elle binde will roll over he noeud rallier lhnn in il'. .lflei'iee with elle vulling; dife opening n wey through sneh obslrm'l'ionsa, :ind one ling the linll depth olf he girolnld wheel lille lower edge ol' bolli n'lieffe` beine' on :1 level) Ille weight ol the `feeder will inninlinin lhe blade in die vieil. el :ill limes.

ln operation the Weeder nieve@ oler llle ground lo be cleaned ol' Woede, end the blade enls the Weeds.

No Y, :is llie weeds adhering' blade beeon'ies lioul lroni thereto, the operating lever is nioved forward, which movement releases llle roller ll'oln the binde and :it the salue linie lin-ew@ llle elnlell into engagement with he ground `wheel when lhe letter will ro- 4lq-.le the binde nnlil the lripping ineelnlnisln le rele. a :ind lle roller ngznn engager; the rem' edge el the blade.

.le ille lifipping meelmnimn is released the .:luleh reliurnis lio ile: normal poeilion, nelinrled by ilis spring, und lhe ground Wheel lhen eonlinnes to rolnle on ills collar Wll1- onl :illeeling llie blade.

l*l.i\'inj line.' deeeribed my invention, elzi'nn:

l. ln n weeder, the combination with e n'eellerharing; :i rel-.liable blade, :1nd lripning hierin@ lor eonlrolling the rotation of lhe binde, oli z. loose ground wheel idly imnnled on lhe mile )l said blade, :i elnleh inlerpeeed belneen su d wheel and llle blade, :ind nlezineslo oimmle `seid elnteh to rotule he blade :ze ll'le lribping mennel is released.

ln n. weeder, the ecnnbinelion with n rfeeder having n rotatable binde, und n tripingg nieuwe lor conlrolling y the rototion of n; blade, ol'- n pilot culling dise idly moonllhe runner ol' :nid weeder, u. loose wliee lill-57 mounted on the axle ol' ..1 i, ld. ond positioned in linee 'willi the pi el'. dige, :L elnleh nlrerporfzed between the 7 linlony whereof l nllix my signa- A.. TALBOT.

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